LG SERIAL # 604TAQP1396. STARTED HUMMING (LOUDER SOUND). STOPPED CYCLE AFTER ABOUT 1-2 MINUTES...SLIGHT BURNING ORDER..FOOD NOT HEATED. WHAT PARTS ARE NEEDED, PROBABILITY OF REPAIR? UNIT IS 5-6 YRS OLD...IS IT WORTH FIXING
ANSWER Gary, The first inclination would be to check or replace the capacitor 0CZZW1H004S and diode 6851W1A001V. If eithert is weak or failed, this can produce a loud buzzing noise, odor, and a no cook situation. There's also a posibility that the transformer 6170W1D052U or magnetron 2B71165R has failed. All these components are high voltage, and you'll need to be very careful and make sure the power is disconnected, and the capacitor is discharged before you start any repairs or tests.
Answered by AppliancePartsPros.com | Friday, January 04, 2013